Apparatus for upsetting screen wire



Oct. 5 1926. '1,602,049

. J. S ERS emma od. 5, iaze. 1,52,049 UNITED STA'TES PATENT OFFICE.

MITCHELL J. SOMERS, OF SPRINGFIELD, O-IIO.

APPARATUS FOR UPSETTING SCR-BEN WIRE.

Application filed December 5,V 1925. Serial No. 73,461.

My present invention relates especially to Figure 2 is an end View thereof, apparatus for upsettlng or crimping screen Figure 3 is an enlarged detail plan view wire, that is, heavy woven wire, such as used of a portion of the die surface of' the male in the manufacture of san-d riddles for foundie, v

dry and other similar uses, and my inven- Figure 4 is a plan view of a small section tion has to do more particularly with the of the screening material subsequent to the upsetting of regularly spaced apart portions upsetting Operation, and of such woven wire and in such manner as Figure 5 is a sectional view taken on line to leave flat portions of the screen between 5-5 of Figure 4.

w the upset portions and to form relatively Referring now to these figures, and parsharp angles between the fiat portions and ticularly to Figures 1 and 2, I have shown the upset portions as well as between the a pair of cylindrical dies including a male several faces of the upset portions themdie 10, and a female die 11, both of which selves. may be mounted upon shafts 12, suitably l The apparatus constituting my present inconnected and actuated in unison whereby vention is moreover for the Specific purpose screen material including crossed parallel of producing a sand screen material of the wires 18 as seen in Figure 11, may be fed nature described and claimed in'my applicabetween the die rollers.

tion #29,169, which was filed May 9, 1925, In order that the upsetting of the screen 20 and allowed October 13, 1925, having pyrawires 13 may be successfully carried out, it midal upset portions so shaped and so aris of course obvious that the rollers or rather o increase effectiveness and efiithe die surfaces of the rollers be made to ciency in the same screening Operation as correspond to the Width of the woven ma- R well as permit of use of the material in a terial fed therebetween, and for this pur- 25 frame as a sand rid-dle. without additional pose, it is of course obvious that these rollers reinforcement. may be formed either in one piece or of a The screen material with which my invensectional built up construction as desired, or tion is intended for use, is formed in the first as the necessities may require. instance of woven wire, and subsequent to It is also obvious that for the upsetting` 30 the upsetting Operation for which purpose of the screen wires 13 so as to form in the my present invention is proposed, this matescreen a plurality of pyramidal upset porrial is galvanized or otherwise treated for tions as indicated at let in Figure 5, in such preservative purposes, and to lock or weld manner as to leave approximately fiat porthe crossing wires against relative displacetions of the screen between the upset por- :E mene tions and to form between the flat portions It becomes obvious from this that in the and the upset portions as well as between upsetting Operation the wires of the screenthe faces of the upset portions, relatively ing material while woven, are not otherwise sharp angles, it is necessary that the male SU connected to one another and are therefore die 10 be provided with pyramidal projecfree to stretch during the upsetting operations 15 in the definite relation shown over tion, as well as to displace one from another its entire surface to coact with similarly should the up'settin'g Operation be crrried out shaped recesses 16 in the female die, and without any less than the required care. It from Figure 3 in particular, it will be noted is for this purpose that my invention prothat the crests or apices of the pyramidal 45 poses an apparatus which will not only acprojections 15 of the male die 10 have slots complish the upsetting Operation, but will 17 which as plainly seen in Fig. 3 may redo so without risk of displacement of the ceive the crossing wires 13 of the screen mawires laterally with respect to one another, terial and are adapted to prevent lateral disat their overlapping portions, while permitplacement of these wires during the upsetting` their longitudinal stretching. ting Operation and at the same time, leave In the aceompanyingI drawing which illusthe wires free to stretch in the direction of trates my present invention and forms a part their length. of this s'pecification,

Figure 1 is a front elevation of the two the screen wire through the use of cylindripressure rollers which form the upsetting cal male and female dies as proposed by my dies, present apparatus, I permit of the accomranged as t kai By thus providing for the upsettingl of plishment ofl the desired Operation in a continuous'manner and in this Way for the economical production of the iinished material having the advantages set forth in my application above referred to.

1. An apparatus of the character and for the Purpose described, comprising cylindrical male and female upsetting dies, the male die hzwiiigfprojeetions up'on'its surface provided flttheir crest-s With means to engage crossed Wire straindsend to prevent lateral displacement of such strands While at the cal'male and female upsetting "ment of such straiids during` their same time permitting lengthwise stretching of the strands for the Purpose Set forth.

2. An apparatus of the character end for the Purpose described, comprising cylindridies, the male die hovingprojections and the female die having recesses to receive said projectioiis,

and-the projections of the male die having at their crests slots adapted to receive crossed Wlre stran-ds andv toprevent lateml dispiacelength Wise stretching in the upsettin-g Operation.

MITCHELL SOMERS. 

